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    <script>
        /*
        Promise.resolve:
            -默认返回一个成功的promise实例，值是resolve接受的实参，快速把一个值包装成promise实例
            -如果resolve的参数是一个promise实例，则resolve的返回值和这个实例保持一致
        */ 

        const result = Promise .resolve(1);
        console.log("result",result);

        const result2 = Promise.resolve(new Promise((resolve,reject) =>{
            // resolve(1)
            reject("err")
        }));
        console.log("result2",result2);
    </script>
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